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Since all these materials are explicited, what is the specific element behind? Carbon fiber is known for being light weight and inconel is known for high temperature capabilities. So by naming the m …

If I understand your edit, the technical term for what you are looking for is called a "shrouded blade" or maybe a "tip shroud". They are definitely used. Google images will show you many pictures o …

Corrected speed allows performance characteristics of the jet engine to be easily compared across operating conditions, specifically across different ambient temperatures. Let's just say that for a gi …

This might not be a super satisfying answer as I'm not a fan expert, but since no one else has answered, let me tell you what I know. There are many competing and often mutually exclusive constraints …

TLDR: Pretty much impossible with current technology as I understand the question. I think you are focusing on the wrong part of the problem. Turboprop vs turbofan is pocket change compared to the am …

So first, both measurements are made by accelerometers, and accelerometers are by definition sensitive to acceleration. So the original units are either G or m/s^2. They are converted to different u …

To my knowledge, there are no turbine blisks in any current engine. There may be one out there I don't know about, but they certainly are not common. The reason is blade life. With a blisk, if you h …

As a rough rule of thumb, the speed of a compressor/fan is such that when at high speed (i.e. takeoff), the tip of the blade is going close to Mach 1 (i.e. the circumferential velocity is close to the …

This is most likely some kind of a test where high speed photography (as in 5,000 - 10,000 frames/second) will be used to capture the detailed motion of the fan blades. Types of tests that might requi …

This is an order of magnitude educated guess: Based on this picture from Wikipedia: You can see that the aft mount is attached to the turbine rear frame. As such, it'll get relatively toasty. I'd s …

In theory, I think that should be possible, as the -3B is a lower thrust rating than the -3C (going to higher thrust rating would be harder). However, you would have to ask CFM. I think they are the …

On Boeing aircraft, the "centerbody" is part of the exhaust system. It is the inner is the inner part of the exhaust as shown in the picture below (the outer part being called the primary nozzle). T …

The existing answers do a great job at answering why jet engines are expensive to develop: because they are so complicated. Let me try to answer, why are jet engines so complicated? To understand tha …

You'll have a hard time finding an exact answer, as that's unlikely to be public information, but here are some general trends: In the case of the high pressure turbine, the blades are one of the key …

So this article, says that the average brand new CFM56-7 will go 18,000 cycles (i.e. flights) before its first shop visit. You can't replace the turbine blade on-wing, only in the overhaul shop. So …